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  5. Service Manual Addendum

Icom IC-2300H Service Manual Addendum

Other manuals for IC-2300H: Instruction Manual, Instructions, Instructions

Summary of IC-2300H

  • Page 1

    Service manual addendum contents parts list . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 board layouts . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 voltage diagram . . . . . . . . . . . . . . . . . . . . . . . . . 8 feb. 2012.

  • Page 2: Section 6

    Feb. 2012 eqv.= this component is equivalent to the ref no. Component listed above, and may be substituted on parts orders and repairs. 1 section 6 section 6. Parts list ic3 1110006470 s.Ic lmv324ipwr b 27.5/17.6 ic4 1110007620 s.Ic nju7704f3-42a-te1-#zzzb b 111.6/23.2 ic5 1130016260 s.Ic br24t64fvt...

  • Page 3

    Feb. 2012 eqv.= this component is equivalent to the ref no. Component listed above, and may be substituted on parts orders and repairs. 2 ref parts description m. H/v no. No. Location [logic unit] c45 4030016790 s.Cer c1005 jb 1e 103k-t b 96.5/5.0 c46 4030016970 s.Cer c1005 jb 1e 223k-t b 56.6/8.1 c...

  • Page 4

    Feb. 2012 eqv.= this component is equivalent to the ref no. Component listed above, and may be substituted on parts orders and repairs. 3 ref parts description m. H/v no. No. Location [main unit] x1 6050012830 s.Xta cr-875 tts14vsb-a3 15.3 mhz t 64.7/14.0 x2 6070000300 s.Dis jtbm450cx24 t 93.5/5.2 l...

  • Page 5

    Feb. 2012 eqv.= this component is equivalent to the ref no. Component listed above, and may be substituted on parts orders and repairs. 4 ref parts description m. H/v no. No. Location [main unit] r216 7030005050 s.Res erj2gej 103 x (10k) t 19.4/21.5 r217 7030005090 s.Res erj2gej 104 x (100k) t 23.3/...

  • Page 6

    Feb. 2012 eqv.= this component is equivalent to the ref no. Component listed above, and may be substituted on parts orders and repairs. 5 ref parts description m. H/v no. No. Location [main unit] c229 4030016790 s.Cer c1005 jb 1e 103k-t b 89.8/13.6 c230 4030017460 s.Cer c1005 jb 1h 102k-t t 76.9/22....

  • Page 7: Section 8.

    Feb. 2012 6 section 8. Section 8. Board layouts the combination of top side and bottom side of this • main unit (top view) + – • logic unit (top view) [dial] [vol] [ext sp] [sql] [mic/sp] j1 clone pwron c5v +8v extstb data pllck pllstb unlk modin extck dastb gnd sw5v deto sd oe lvin nois +8v gnd sw5...

  • Page 8: • Main Unit

    Feb. 2012 7 the combination of top side and bottom side of this • main unit (bottom view) j1 (chassis) mp5 mp2 w2 j3 • logic unit (bottom view) clone pwron c5v +8v extstb data pllck pllstb unlk modin extck dastb gnd sw5v deto sd oe lvin nois +8v gnd sw5v +8v gnd gnd sw5v idet hvin gnd plldata volout...

  • Page 9: Section 10

    Feb. 2012 8 section 10 section 10. Voltage diagram *: refer to the parts list for the value and name of component. • logic unit d3 dz2j091m r7 ntcg10 *d23 c41 0.1 c67 10 c102 0.22 c28 0.001 r519 680 r91 120k c15 0.001 r87 exb28v102j r10 10k r559 100k c64 0.01 ic28 cd4066bpwr 1 i/o1 2 o/i1 3 o/i2 4 i...

  • Page 10

    S-14811xz-c1 dec. 2011 fm transceiver.

  • Page 11

    This service manual describes the latest technical information for the ic-2300h fm transceiver, at the time of publication. Never connect the transceiver to an ac outlet or to a dc power supply that uses more than the specified voltage. This will ruin the transceiver. Do not expose the transceiver t...

  • Page 12

    Table of contents section 1 specifications section 2 inside views section 3 disassembly instruction section 4 circuit descripiton 4-1 receiver circuits. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1 4-2 transmitter circuits . . . . ...

  • Page 13: Section 1. Specifications

    1 - 1 section 1. Specifications m general • frequency coverage : (unit: mhz) usa tx: 144–148/rx: 136–174* export tx: 136–174*/rx: 136–174* taiwan, korea tx/rx: 144–146 *guaranteed: 144–148 mhz range only. • type of emission : fm • number of memory channels : 207 (incl. 6 scan edges and 1 call) • sca...

  • Page 14: Section 2. Inside

    2 - 1 section 2. Inside views • logic unit cpu (ic1) eeprom (ic5) cpu clock (x1) shift register (ic30) analog switch (ic6) af lpf/hpf (ic3) shift register (ic29) analog switch (ic28).

  • Page 15

    2 - 2 • main unit (top view) drive amp (q26) d/a converter (ic5) discriminator (x2) 2nd if filter (for wide mode) (fi1) tcxo (x1) af power amp (ic7) pre-drive amp (q22) 2nd if filter (for narrow mode) (fi2) apc amp (ic9).

  • Page 16

    2 - 3 vco • main unit (bottom view) power amp (q29) 5 v regulator (ic8) 8 v regulator (ic6) if ic (ic3) 1st if filyer (fi3) pll ic (ic1) shif register (ic2) af power amp (ic7).

  • Page 17: Section 3. Disassembly

    3 - 1 section 3. Disassembly instruction be careful about the fl at cable and connector when separating the front panel from the chassis. Removing the front panel 1) remove [dial] from the front panel. 2) remove 2 hex screws from the front panel. Removing the main unit 1) remove 8 screws from the to...

  • Page 18

    W2 w2 w2 main unit main unit main unit main unit main unit unsolder solder remover 3 - 2 w2 main unit main unit main unit main unit main unit 4 screws 9 screws w2 main unit main unit main unit main unit main unit chassis 5) unsolder 3 points at the antenna connector. 6) remove the total of 13 screws...

  • Page 19: Section 4. Circuit

    4 - 1 • rf circuits • 1st if circuits section 4. Circuit description antenna lpf bpf bpf ant sw rf amp att limit d24-d25 d29-d32 d28 tx circuits d26 d23 d22,d34 main unit q32 lpf if amp bpf xtal fi3 rf circuits q27 d17 main unit q28 limit 46.35mhz rx;136.000-174.000mhz 4-1 rf circuits the rx signal ...

  • Page 20: Logic Unit

    4 - 2 • rx af circuits • tx af circuits • tx amplifier and apc circuits • modulation circuits af amp j3 sp1 lpf hpf -> 2nd if circuits af out sp q20 ic7 logic unit main unit analog sw ic6 txaf/ rxaf txaf/ rxaf ic3b rxaf ic3c ic28 analog sw elec. Vol ic25 rxaf micaf/ rxaf volout (vout2) sp sw q36-q38...

  • Page 21

    4 - 3 • frequency synthesizer 4-3 frequency synthesizer the 2300h has two vcos; tx vco and rx vco. While transmitting, the tx vco (q13, d7–d9, l5) is activat- ed. The oscillating frequency is set by the value of c89, l5, d7 and d8. Applying the voltage to both d7 and d8, the wide oscillating frequen...

  • Page 22

    4 - 4 4-5 port allocations • cpu (logic unit: ic1) • d/a converter (main: ic5) • shif register (main: ic2) pin no. Line name description i/o 1 micsel microphone connection detect. I 3 tone dtmf/beep/1750hz tone signal. O 4 ctcout tone signal (ctcss/dtcs) encoding output. O 10 reset cpu (logic unit: ...

  • Page 23: Section 5. Adjustment

    5 - 1 section 5. Adjustment procedure equipment grade and range equipment grade and range rf power meter (50 Ω terminated) measuring range : 0.1–30 w* : 0.1–70 w** frequency range : 100–300 mhz swr : less than 1.2 : 1 jig cable modifi ed 8-pin modular plug. (see the illustration shown below.) freque...

  • Page 24

    5 - 2 adjustment transceiver’s condition operation adjustment item value reference frequency 1 • transmitting 1) connect a power meter or dummy load to the antenna connector. 2) loosely couple a frequency counter to the antenna connector. 3) while transmitting, adjust the frequency using [dial], and...

  • Page 25

    5 - 3 5-3 transmit adjustments 1) select an adjustment item using [bank] or [v/mhz]. 2) set or modify the adjustment value as specifi ed using [dial], and then push [s.Mw]. Adjustment transceiver’s condition operation adjustment item value tx output power (hi power) -band low- 1 note: rotating [dial...

  • Page 26

    5 - 4 adjustment transceiver’s condition operation adjustment item value rx sensitivity -band low- 1 note: "rx sensitivity" must be adjusted before "s-meter." and when "rx sensitivity" is re- adjusted, "s-meter" must be re-adjusted too. • receiving 1) c o n n e c t a n s s g t o t h e a n t e n n a ...

  • Page 27: Section 6. Parts

    6 - 1 section 6. Parts list ic1 1140015980 s.Ic r5f2l3aacnfp b 100.25/17.1 ic3 1110006470 s.Ic lmv324ipwr b 27.5/17.6 ic4 1110007620 s.Ic nju7704f3-42a-te1-#zzzb b 111.6/23.2 ic5 1130016260 s.Ic br24t64fvt-we2 b 113.2/4.1 ic6 1130011770 s.Ic cd4066bpwr b 40.9/18.2 ic24 1110006490 s.Ic lmv321idckr b ...

  • Page 28

    6 - 2 ref parts description m. H/v no. No. Location [logic unit] c45 4030016790 s.Cer c1005 jb 1e 103k-t b 96.5/5.0 c46 4030016970 s.Cer c1005 jb 1e 223k-t b 56.6/8.1 c47 4030016930 s.Cer c1005 jb 1a 104k-t b 34.9/17.6 c48 4030017760 s.Cer c1005 jb 1h 222k-t b 56.6/7.2 c49 4030016930 s.Cer c1005 jb ...

  • Page 29

    6 - 3 ref parts description m. H/v no. No. Location [main unit] l22 6200011031 s.Coi eljrf r10jfb b 81.6/23.9 l23 6200012860 s.Coi 0.20-0.7-4tr 6.5n b 44.7/51.6 l24 6200012860 s.Coi 0.20-0.7-4tr 6.5n b 44.7/57.9 l25 6200011090 s.Coi c2012c-r56j-a b 77.9/20.3 l26 6200010160 s.Coi as080440-22n t 80.6/...

  • Page 30

    6 - 4 ref parts description m. H/v no. No. Location [main unit] c9 4030017430 s.Cer c1005 ch 1h 101j-t t 86.3/16.5 c10 4030017460 s.Cer c1005 jb 1h 102k-t b 10.6/34.3 c11 4030019990 s.Cer c1005 jb 1c 104k-t b 15.5/28.9 c12 4030016790 s.Cer c1005 jb 1e 103k-t t 87.9/10.6 c13 4030017460 s.Cer c1005 jb...

  • Page 31

    6 - 5 ref parts description m. H/v no. No. Location [main unit] c271 4030017460 s.Cer c1005 jb 1h 102k-t t 78.9/30.6 c272 4030011060 s.Cer grm31m2c2h4r0cy21l (grm42-6 ch) t 92.1/43.5 c274 4030011060 s.Cer grm31m2c2h4r0cy21l (grm42-6 ch) t 92.1/41.4 c275 4030017460 s.Cer c1005 jb 1h 102k-t t 86.4/27....

  • Page 32: Section 7. Mechanical

    7 - 1 [chassis parts] ref order description qty. No. No. W1 8600036881 sp cable-1 (fx2493 p01lo) 1 j1 6510004881 mr-dse-01-1 1 sp1 2510001160 057p0802 1 mp1 8010022230 3251 chassis 1 mp2 8110010130 3251 cover assembly 1 mp3 8930083860 3251 sp rubber 1 mp4 8930062130 thermal sheet (ap)tc200hs-1.4 (15...

  • Page 33

    Mp1(l) mp3(l) mp2(l) mp5(l) ep9(l) ds1(l) logic unit mp7(l) mp6(l)x4 mp2(ch) mp7(ch)x8 sp1(ch) j1(ch) main unit mp4(ch) w1(m) w6(m) w1(m) mp6(ch) mp1(ch) w1(ch) mp8(l) mp1(l) mp11(l) mp9(l) mp8(ch) mp4(l) viewing from the rear. Mp3(ch) mp6(ch) x9 mp9(ch) x4 7 - 2.

  • Page 34: Section 8. Board

    8 - 1 section 8. Board layouts the combination of top side and bottom side of this • main unit (top view) + – • logic unit (top view) [dial] [vol] [ext sp] [sql] [mic/sp] j1 clone pwron c5v +8v extstb data pllck pllstb unlk modin extck dastb gnd sw5v deto sd oe lvin nois +8v gnd sw5v +8v gnd gnd sw5...

  • Page 35: • Main Unit

    8 - 2 the combination of top side and bottom side of this • main unit (bottom view) j1 (chassis) mp5 mp2 w2 j3 • logic unit (bottom view) clone pwron c5v +8v extstb data pllck pllstb unlk modin extck dastb gnd sw5v deto sd oe lvin nois +8v gnd sw5v +8v gnd gnd sw5v idet hvin gnd plldata volout intsp...

  • Page 36: Section 9. Block

    9 - 1 section 9. Block diagram antenna lpf lpf bpf bpf ant sw tx/rx sw af amp rf amp pwr amp drive pre buff lo amp if amp apc ctrl fil loop pll ic lcd att bpf ceramic bpf ceramic bpf xtal x2 d/a +5 reg +8 reg j3 sp1 w6 t8 reg matrix x1 drive amp lpf buff x3 bpf lpf hpf lpf lpf mic amp ctcin limit pw...

  • Page 37: Section 10. Voltage

    10 - 1 section 10. Voltage diagram *: refer to the parts list for the value and name of component. • logic unit d3 dz2j091m r7 ntcg10 *d23 c41 0.1 c67 10 c102 0.22 c28 0.001 r519 680 r91 120k c15 0.001 r87 exb28v102j r10 10k r559 100k c64 0.01 ic28 cd4066bpwr 1 i/o1 2 o/i1 3 o/i2 4 i/o2 5 cont2 6 co...

  • Page 38

    10 - 2 • main unit (1/2) *: refer to the parts list for the value and name of component. C100 0.001 d12 hvd144a c36 0.001 r44 1.2k c60 0.001 c12 0.01 c144 470p r6 100 c19 0.01 r26 22k q6 l2sc4081 ic2 cd4094bpwr 1 str 2 d 3 clk 4 q1_ 5 q2_ 6 q3_ 7 q4_ 8 gnd 9 qs 10 q's 11 q8 12 q7_ 13 q6_ 14 q5_ 15 o...

  • Page 39

    10 - 3 • main unit (2/2) *: refer to the parts list for the value and name of component. D24 jdp2s12cr c82 0.001 c285 0.1 r188 82k c124 0.001 c274 4p r134 27k c265 4p r118 220k c291 18p c167 8p c145 0.01 mp3 3251 c209 5p c197 0.1 r125 1k c284 0.001 d25 jdp2s12cr r129 5.6 l23 0.20-0.7-4tr r98 180 r19...

  • Page 40

    6f no.68, sec. 1 cheng-teh road, taipei, taiwan, r.O.C. Phone : +886 (02) 2559 1899 fax : +886 (02) 2559 1874 url : http://www.Asia-icom.Com e-mail : sales@asia-icom.Com zac de la plaine 1 rue brindejonc des moulinais bp 5804 31505 toulouse cedex, france phone : +33 (5) 61 36 03 03 fax : +33 (5) 61 ...

  • Page 41

    1-1-32, kamiminami, hirano-ku, osaka 547-0003, japan s-14811xz-c1 © 2011 icom inc..